<label id="fileInputLabel" for="attachment" class="btn btn-sm btn-review" (click)="selectFile()">添加附件</label>
<input id="fileInput" #fileInput type="file" name="attachment" (change)="uploadFile($event)" >
<span>{{errorMsg}}</span>
<progress class="progress progress-info progress-upload" [ngClass]="{'progress-striped': percentage < 100}" [value]="percentage" max="100" *ngIf="percentage > 0"></progress>
